Freight models are no better than the data on which they are based. Although national data programs provide key information on flows into, out of, and through localities, local data collection is needed to complete the picture.
Sources of National Freight Data
State-of-the-Practice in Freight Data: A Review of Available Freight Data in the U.S. (University of Texas at Austin) [PDF, 530KB]
TRB Peer Exchange on Freight Data for State Transportation Agencies [PDF, 1MB]
Freight Data Synthesis (Colorado DOT Data Needs Study) [PDF, 601KB]
Contact fmip@dot.gov to suggest links to additional Web sites.
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